CN208748531U - A kind of protective device for prestress wire tensioning - Google Patents
A kind of protective device for prestress wire tensioning Download PDFInfo
- Publication number
- CN208748531U CN208748531U CN201821235629.4U CN201821235629U CN208748531U CN 208748531 U CN208748531 U CN 208748531U CN 201821235629 U CN201821235629 U CN 201821235629U CN 208748531 U CN208748531 U CN 208748531U
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- China
- Prior art keywords
- protective housing
- slide plate
- plate
- driving
- wire tensioning
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Abstract
The utility model relates to a kind of protective devices for prestress wire tensioning, belong to steel strand wires safeguard field, including bottom plate, the slide plate being slidably arranged on bottom plate, protective housing is provided on slide plate, one side opening of protective housing and shape are cuboid, Buffer Unit is provided on protection chamber interior wall, the upper end inner wall of protective housing is hung equipped with chain, jack is provided on chain, the driving assembly for driving slide plate to move reciprocatingly on bottom plate is provided on slide plate, the driving cylinder for driving protective housing to go up and down in vertical direction is provided on slide plate, the piston rod of driving cylinder extends straight up and connect with protective housing bottom；The setting of protective housing and Buffer Unit can slow down enormous impact force when steel strand wires pop-up, so that steel strand wires, which not will pop up, hurts operator, to achieve the effect that the safety coefficient for improving operator in steel strand tension.
Description
Technical field
The utility model relates to steel strand wires safeguard fields more particularly to a kind of for the anti-of prestress wire tensioning
Protection unit.
Background technique
With the continuous development of Chinese society economy, the traffic engineering constructions such as highway, railway, municipal administration also increasingly develop.Bridge
Important component of the beam engineering as traffic engineering construction, the extensive use of prestressing force precast beam, plate in science of bridge building.In advance
Critical process of the prestress steel strand tensioning as precast beam, plate, stretching force is very big when due to prestress wire tensioning, steel strand wires
It is unexpected that fracture of wire often cause certain personal injury to construction worker.Traditional prestress wire tensioning, is generally adopted
With set up steel pipe scaffold, steel wire hang steel plate is protected.Not only construction efficiency is low, and steel plate is easy by wind-force shadow
Accident fracture of wire impacts steel plate when loud or prestress wire tensioning, and steel plate shakes back and forth to be made steel strand wires rebound deflecting and hurt
Construction personnel in periphery.
Utility model content
The purpose of this utility model is to provide a kind of protective devices for prestress wire tensioning, have and improve steel
The advantages of safety coefficient when twisted wire tensioning.
The above-mentioned purpose of the utility model has the technical scheme that
A kind of protective device for prestress wire tensioning, including bottom plate, the slide plate being slidably arranged on bottom plate, institute
It states and is provided with protective housing on slide plate, one side opening of protective housing and shape are cuboid, are arranged on the protection chamber interior wall
There is Buffer Unit, the upper end inner wall of the protective housing is hung equipped with chain, and jack is provided on the chain, is set on the slide plate
It is equipped with the driving assembly for driving slide plate to move reciprocatingly on bottom plate, is provided on the slide plate for driving protective housing to exist
The piston rod of the driving cylinder of vertical direction lifting, the driving cylinder extends straight up and connect with protective housing bottom.
Implement above-mentioned technical proposal, bottom plate is placed on to the front of steel strand wires, then starting driving cylinder, so that driving gas
The piston rod of cylinder extends, and the protective housing on slide plate is up pushed up, the jack in protective housing is in the prefabricated depth of beam of face
When stop driving cylinder, restart driving assembly, make slide plate mobile toward the direction close to precast beam with protective housing, at this time by steel
Twisted wire, which is put into jack, carries out pulling preparation, and starting jack starts to carry out tensioning to steel strand wires, since jack setting exists
In protective housing, so if protective housing will can cover completely, and the Buffer Unit of setting can slow down when there is a situation where breaking
Enormous impact force when steel strand wires pop up, so that steel strand wires, which not will pop up, hurts operator, to reach in steel strand tension
The effect of the safety coefficient of Shi Tigao operator.
Further, the protective housing is welded by five blocks of steel plates, and the Buffer Unit includes being arranged on the inside of protective housing
Every block of steel plate on several springs and the rubber pad that is arranged on spring.
Implement above-mentioned technical proposal, steel plate is harder and secured, therefore service life is longer；If steel strand wires pop up
When, it can be contacted first with the rubber pad on spring, then spring is contacted with rubber pad the impact force generated by steel strand wires and pressed
Contracting, the impact force that steel strand wires generate at this time is cut in, to achieve the effect that slow down impact force.
Further, the chain is provided with inserted link far from ground surface end, is offered on the steel plate on the protective housing top for inserting
Bar passes through the perforation of steel plate, and the threaded one end that the inserted link is located on the outside of protective housing after insertion perforation is connected with anti-decylization.
Implement above-mentioned technical proposal, when jack is mounted in protective housing, first by the inserted link on chain from protective housing
Inside passes through perforation, so that anti-decylization from internal stretch to outside, is then screwed on inserted link and is located inside protective housing by inserted link
One end, at this moment inserted link is just stuck in perforation, and chain and jack can be successfully lifted in protective housing, reaches installation
Convenient effect.
Further, the slide plate is close to the setting of bottom plate side there are two dovetails, and face slide plate side offers on the bottom plate
Two dovetail grooves for two dovetails slidings, the driving component, which is arranged on slide plate, to be located between two dovetails
Position.
Implement above-mentioned technical proposal, starts driving assembly, slide plate starts to slide on bottom plate at this time, the dovetails on slide plate
Also it is slided in the dovetail groove on bottom plate immediately；Due to the characteristic of dovetails and dovetail groove itself shape, dovetails only can
It is not easy to be detached from dovetail groove in sliding process along the length direction sliding of dovetail groove, so that slide plate is not easily disconnected from bottom
Plate achievees the effect that slide plate is normally slided on bottom plate.
Further, the end of face dovetail groove is provided with ball in the dovetails.
Implement above-mentioned technical proposal, the setting of ball is so that dovetails become rolling in the sliding of dovetail groove, to reach
Enable the effect that dovetails are more swimmingly slided in dovetail groove.
Further, the driving component includes the servo motor being arranged on slide plate and the output that servo motor is arranged in
Gear on axis is located on the bottom plate immediately below gear and is provided with length direction appearance identical with the length direction of dovetail groove
Receive slot, the output shaft of the servo motor passes vertically through slide plate and the gear is located in holding tank, the inside of the holding tank
Length direction on wall along holding tank is provided with the rack gear engaged with gear.
Implement above-mentioned technical proposal, start servo motor, the gear being arranged on servo motor output shaft at this time can also be held
Begin to rotate, engages since gear passes through slide plate with the rack gear in holding tank, can be held along the length direction of rack gear in gear
Begin to move, so that slide plate be driven to move on bottom plate, reaches the mobile more intuitive and convenient effect of driving slide plate.
Further, driving cylinder four right angles of face protective housing bottom wall on slide plate are each provided with one, institute
The sleeve being provided on the steel plate of protective housing bottom for driving the piston rod insertion of cylinder is stated, screw thread is worn on the side wall of the sleeve
Equipped with the abutting bolt being pushed against the piston rod for driving cylinder in sleeve.
Implement above-mentioned technical proposal, when driving cylinder is connect with protective housing, the piston rod of cylinder will be driven to be aligned first
Sleeve is simultaneously inserted into, and then gradually tightens the abutting bolt being threaded through in sleeve lateral wall, so that pushing against one end of bolt tightly
It contradicts on the piston rod of driving cylinder, to achieve the effect that easy for installation.
Further, the bottom plate is provided with multiple universal wheels close to ground surface end.
Implement above-mentioned technical proposal, the setting of universal wheel enables bottom plate arbitrarily to be pushed, to facilitate operator
It is transported.
In conclusion the utility model has the following beneficial effects:
One, the setting of protective housing and Buffer Unit can slow down enormous impact force when steel strand wires pop up, so that steel strand wires
It not will pop up and hurt operator, to achieve the effect that the safety coefficient for improving operator in steel strand tension;
Two, the setting of ball is so that dovetails become rolling in the sliding of dovetail groove, enables dovetails to reach
The effect more swimmingly slided in dovetail groove.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment；
Fig. 2 is the utility model embodiment for showing explosion and the partial sectional view of gear；
Fig. 3 is the portion the A enlarged drawing in Fig. 2；
Fig. 4 is the portion the B enlarged drawing in Fig. 2；
Fig. 5 is the perspective view of the explosion of the utility model embodiment.
Appended drawing reference: 1, bottom plate；11, dovetail groove；12, holding tank；121, rack gear；13, universal wheel；2, slide plate；21, it drives
Cylinder；22, dovetails；221, ball；3, protective housing；31, steel plate；311, it perforates；312, anti-decylization；313, sleeve；314, it supports
Tight bolt；32, chain；321, inserted link；33, jack；4, Buffer Unit；41, spring；42, rubber pad；5, driving assembly；51,
Servo motor；52, gear.
Specific embodiment
Below in conjunction with attached drawing, the technical solution of the utility model embodiment is described.
As shown in Figure 1, 2, a kind of protective device for prestress wire tensioning, including bottom plate 1, it is slidably arranged in bottom
Slide plate 2 on plate 1, bottom plate 1 are provided with multiple universal wheels 13 close to ground surface end；Protective housing 3 is provided on slide plate 2, protective housing 3
One side opening, protective housing 3 are welded by five blocks of steel plates 31, and the shape of protective housing 3 is cuboid；On 3 inner wall of protective housing
It is provided with Buffer Unit 4, in the present embodiment, Buffer Unit 4 includes several springs 41 and the rubber being arranged on spring 41
Pad 42 is provided with spring 41 on every block of steel plate 31, and is provided with a rubber pad 42 on the spring 41 of every block of steel plate 31；It is anti-
The upper end inner wall of protecting box 3 is hung equipped with chain 32, is provided with jack 33 on chain 32, in conjunction with Fig. 2, Fig. 3, chain 32 is far from very heavy
It pushes up 33 ends and is provided with inserted link 321, the perforation 311 for passing through steel plate 31 for inserted link 321 is offered on the steel plate 31 on 3 top of protective housing,
The threaded one end that inserted link 321 is located at the outside of protective housing 3 after insertion perforation 311 is connected with anti-decylization 312, i.e. anti-decylization 312
It is provided in inner ring internal screw thread (not marked in figure), is provided on inserted link 321 and (is not marked in figure with the external screw thread of screw-internal thread fit
Out).
When jack 33 is mounted in protective housing 3, the inserted link 321 on chain 32 is passed through inside protective housing 3 first
Perforation 311, so that anti-decylization 312 from internal stretch to outside, is then screwed on inserted link 321 and is located in protective housing 3 by inserted link 321
The one end in portion, at this moment inserted link 321 is just stuck in perforation 311, and chain 32 and jack 33 can be successfully lifted on anti-
In protecting box 3.Steel plate 31 is harder and secured, therefore service life is longer；When steel strand wires are put into tensioning in jack 33, such as
When fruit steel strand wires pop up, it can be contacted first with the rubber pad 42 on spring 41, then spring 41 is by steel strand wires and rubber pad 42
It contacts the impact force generated and compresses, the impact force that steel strand wires generate at this time is cut in, to achieve the effect that slow down impact force.
As shown in Figure 2,4, driving assembly 5 is provided on slide plate 2, driving assembly 5 is for driving slide plate 2 to do on bottom plate 1
It moves back and forth, the driving cylinder 21 for driving protective housing 3 to go up and down in vertical direction is provided on slide plate 2, driving cylinder 21
Piston rod extends straight up and connect with 3 bottom of protective housing；Drive cylinder 21 on slide plate 23 bottom wall of face protective housing four
A right angle is each provided with one, sleeve 313 is provided on the steel plate 31 of 3 bottom of protective housing, sleeve 313 is for driving cylinder 21
Piston rod is inserted into, and is equipped on the side wall of sleeve 313 and is pushed against bolt 314, and the piston that bolt 314 is used to drive cylinder 21 is pushed against
Bar is pushed against in sleeve 313, and the threaded hole (not marking in figure) being connected to inside sleeve 313 is offered on the side wall of sleeve 313.
As shown in Fig. 2, driving assembly 5 includes the servo motor 51 being arranged on slide plate 2 and is arranged in servo motor 51
Output shaft on gear 52, the underface that gear 52 is located on bottom plate 1 is provided with holding tank 12, the length direction of holding tank 12
Identical as the length direction of dovetail groove 11, the output shaft of servo motor 51 passes vertically through slide plate 2 and gear 52 is located at holding tank 12
It is interior, be provided with the rack gear 121 engaged with gear 52 on the inner sidewall of holding tank 12, rack gear 121 along holding tank 12 length side
To setting.
Starting servo motor 51, the gear 52 being arranged on 51 output shaft of servo motor at this time can also start turning, due to
Gear 52 passes through slide plate 2 and engages with the rack gear 121 in holding tank 12, therefore in the meeting of gear 52 along the length direction of rack gear 121
Start to move, so that slide plate 2 be driven to move on bottom plate 1, reaches the mobile more intuitive and convenient effect of driving slide plate 2；And
And due to the characteristic of servo motor 51 itself, can be inverted after rotating forward, therefore it is past on bottom plate 1 to can be realized slide plate 2
Multiple movement.
As shown in Fig. 2,5, slide plate 2 is close to the setting of 1 side of bottom plate there are two dovetails 22, and 2 side of face slide plate opens up on bottom plate 1
There are two dovetail grooves 11 for the sliding of two dovetails 22, in order to enable dovetails 22 can be more swimmingly sliding in dovetail groove 11
Dynamic, the end of face dovetail groove 11 is provided with ball 221 in dovetails 22.And just setting is located at servo motor 51 on slide plate 2
Position between two dovetails 22.
Start servo motor 51, the beginning of slide plate 2 at this time is slided on bottom plate 1, and the dovetails 22 on slide plate 2 are also immediately the bottom of at
Sliding in dovetail groove 11 on plate 1；Due to the characteristic of shape of dovetails 22 Yu dovetail groove 11 itself, dovetails 22 can edge
Dovetail groove 11 length direction sliding and be not easy in sliding process be detached from dovetail groove 11 so that slide plate 2 is not easily disconnected from
Bottom plate 1 achievees the effect that slide plate 2 is normally slided on bottom plate 1.
Bottom plate 1: being placed on the front of steel strand wires by specific work process, then starting driving cylinder 21, so that driving gas
The piston rod of cylinder 21 extends, and the protective housing 3 on slide plate 2 is up pushed up, the jack 33 in protective housing 3 is in face precast beam
Height when stop driving cylinder 21, restart servo motor 51, allow slide plate 2 with protective housing 3 toward close to precast beam direction
It is mobile, steel strand wires are put into jack 33 carry out pulling preparation at this time, starting jack 33 starts to carry out tensioning to steel strand wires,
Since jack 33 is arranged in protective housing 3, so if protective housing 3 will can cover completely when there is a situation where breaking, if
The spring 41 and rubber block set can slow down enormous impact force when steel strand wires pop-up, so that steel strand wires, which not will pop up, hurts operation
Personnel, to achieve the effect that the safety coefficient for improving operator in steel strand tension.
Claims (8)
1. a kind of protective device for prestress wire tensioning, which is characterized in that including bottom plate (1), be slidably arranged in bottom
Slide plate (2) on plate (1) is provided with protective housing (3) on the slide plate (2), (3) one side opening of protective housing and shape is length
Cube shape is provided with Buffer Unit (4) on protective housing (3) inner wall, and the upper end inner wall of the protective housing (3) is hung equipped with chain
(32), it is provided with jack (33) on the chain (32), is provided on the slide plate (2) for driving slide plate (2) in bottom plate
(1) driving assembly (5) to move reciprocatingly on is provided with for driving protective housing (3) in vertical direction liter on the slide plate (2)
The piston rod of the driving cylinder (21) of drop, driving cylinder (21) extends straight up and connect with protective housing (3) bottom.
2. a kind of protective device for prestress wire tensioning according to claim 1, which is characterized in that described anti-
Protecting box (3) is welded by five pieces of steel plates (31), and the Buffer Unit (4) includes every piece of institute being arranged on the inside of protective housing (3)
The rubber pad (42) stating several springs (41) on steel plate (31) and being arranged on spring (41).
3. a kind of protective device for prestress wire tensioning according to claim 1, which is characterized in that the chain
Item (32) is provided with inserted link (321) far from ground surface end, is offered on the steel plate (31) on protective housing (3) top for inserted link
(321) perforation (311) of steel plate (31) is passed through, the inserted link (321) is located on the outside of protective housing (3) afterwards in insertion perforation (311)
Threaded one end be connected with anti-decylization (312).
4. a kind of protective device for prestress wire tensioning according to claim 1, which is characterized in that the cunning
There are two close bottom plate (1) the side settings of plate (2) dovetails (22), and face slide plate (2) side offers two confessions on the bottom plate (1)
The dovetail groove (11) of two dovetails (22) slidings, the driving component (5), which is arranged on slide plate (2), is located at two dovetails
Position between block (22).
5. a kind of protective device for prestress wire tensioning according to claim 4, which is characterized in that the swallow
The end of face dovetail groove (11) is provided with ball (221) on tail block (22).
6. a kind of protective device for prestress wire tensioning according to claim 4, which is characterized in that the drive
Dynamic component (5) include the servo motor (51) being arranged on slide plate (2) and are arranged on the output shaft of servo motor (51)
Gear (52) is located at the length side that length direction Yu dovetail groove (11) are provided with immediately below gear (52) on the bottom plate (1)
To identical holding tank (12), the output shaft of the servo motor (51) passes vertically through slide plate (2) and the gear (52) is located at
In holding tank (12), it is provided with and gear (52) on the inner sidewall of the holding tank (12) along the length direction of holding tank (12)
The rack gear (121) of engagement.
7. a kind of protective device for prestress wire tensioning according to claim 1, which is characterized in that the drive
Cylinder (21) four right angles of face protective housing (3) bottom wall on slide plate (2) of taking offence are each provided with one, the protective housing (3)
The sleeve (313) for driving the piston rod insertion of cylinder (21), the side of the sleeve (313) are provided on the steel plate (31) of bottom
Screw thread is equipped with the abutting bolt (314) being pushed against the piston rod for driving cylinder (21) in sleeve (313) on wall.
8. a kind of protective device for prestress wire tensioning according to claim 1, which is characterized in that the bottom
Plate (1) is provided with multiple universal wheels (13) close to ground surface end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821235629.4U CN208748531U (en) | 2018-08-01 | 2018-08-01 | A kind of protective device for prestress wire tensioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821235629.4U CN208748531U (en) | 2018-08-01 | 2018-08-01 | A kind of protective device for prestress wire tensioning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208748531U true CN208748531U (en) | 2019-04-16 |
Family
ID=66059210
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821235629.4U Expired - Fee Related CN208748531U (en) | 2018-08-01 | 2018-08-01 | A kind of protective device for prestress wire tensioning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208748531U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113738115A (en) * | 2021-08-19 | 2021-12-03 | 中铁十六局集团第五工程有限公司 | Steel strand stretching protection device |
-
2018
- 2018-08-01 CN CN201821235629.4U patent/CN208748531U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113738115A (en) * | 2021-08-19 | 2021-12-03 | 中铁十六局集团第五工程有限公司 | Steel strand stretching protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190416 Termination date: 20210801 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |